Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 6ae3a03a68a4a6ce…

MALICIOUS

Office (OLE) / .DOCX

214.0 KB Created: 2020-09-21 07:35:00 Authoring application: Microsoft Office Word
MD5: fb88a3570eea81dbdd43a03f4283a669 SHA-1: 61b0052f186e16a08d7b55a59794745d6a4b1fde SHA-256: 6ae3a03a68a4a6ce72eddae2943476e1e43938758ab1123168e76dff0aebcb31
242 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample contains VBA macros, including a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The presence of CreateObject and GetObject calls further indicates the intent to manipulate the system. The ClamAV detection as 'Doc.Downloader.Generic' strongly suggests the macro's purpose is to download and execute a secondary payload. No specific family could be identified due to the obfuscated nature of the script.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9764473-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764473-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
a72546be4835befa0cd5934bb3d180228dbaffbae6f31f70f11c03f05171f092		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19249 bytes

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